Title :
A new separation method for Micro-Doppler information of a target with rotating parts
Author :
Li Kaiming ; Luo Ying ; Chi Long ; Zhang Qun
Author_Institution :
Inst. of Telecommun. Eng., AFEU, Xi´an
Abstract :
The classical range-Doppler algorithm canpsilat obtain clear ISAR image of a target with rotating parts. In spectrogram, the micro-Doppler information of the rotor blades is represented as the sinusoidal frequency modulation, whereas the information of main body is depicted as the form of straight lines. So the extraction of micro-Doppler is transformed to the separation of the sinusoids and straight lines. Based on this idea, a simple method of spectrogram cancellation is proposed, which can quickly achieve the purpose of separation and get clear ISAR image of main body. The effectiveness of the algorithm is proved by the simulation results.
Keywords :
Doppler effect; frequency modulation; radar imaging; synthetic aperture radar; ISAR image; micro-Doppler information; rotor blades; separation method; sinusoidal frequency modulation; Chirp modulation; Data mining; Frequency modulation; Laboratories; Radar imaging; Radar scattering; Radar theory; Remote sensing; Spectrogram; Time frequency analysis;
Conference_Titel :
Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on
Conference_Location :
Fujian
Print_ISBN :
978-1-4244-2063-6
Electronic_ISBN :
978-1-4244-2064-3
DOI :
10.1109/ICCCAS.2008.4658020
